Obshchestvo s ogranichennoj otvetstvennostyu "TEKHNOLOGII MONITORINGA SOORUZHENIJ"
发明人:
Kapustin Mikhail Mikhajlovich,Lysenkov Aleksandr Viktorovich,Stakhovskij Vitalij Mikhajlovich
申请号：
RU20170145739
公开号：
RU2670217(C1)
申请日:
2017.12.25
申请国别(地区):
俄罗斯
年份:
2018
代理人:
摘要：
FIELD: technological processes; measurement technology.SUBSTANCE: invention relates to the detection and control of the stress-strain state of a metal structure (object) under load and can be used to evaluate its strength and predict the load-bearing capacity. At controlled points on a structure in a deformed stressed state, measurements of surface deformations ε, the controlled points are selected in such a way that they have the possibility of additional loading regardless of the structure. At controlled points, additional deformations are created, using the known external force P, increase the strain by Δε in stepwise manner, detect change in the external force ΔPuntilincrease is more than some control value. Two cycles of measurements are carried out, in one of which additional deformations coincide in direction with the measured ones, while in the other they are opposite in direction, wherein the reference value is selected to be the same for both measurement cycles, after which the deformation of th
